Difference between revisions of "B2.ParticleSystem"

From GiderosMobile
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=== Description ===
 
=== Description ===
 
Defines particle system in box2d world using Liquid fun
 
Defines particle system in box2d world using Liquid fun
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=== Examples ===
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'''Simple particle system example'''<br/>
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<source lang="lua">-- create world
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local world = b2.World.new(0, 9.8)
 +
 +
local ps1= world:createParticleSystem({ radius=5})
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ps1:setTexture(Texture.new("Bubble.png"))
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stage:addChild(ps1)
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 +
ps1:createParticleGroup({shape=shape2,
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position={x=500,y=250},
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color = 0xFF0000,
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alpha=1,
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flags=0
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})
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ps1:createParticleGroup({shape=shape1,
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position={x=400,y=50},
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color = 0x0000FF,
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alpha=1,
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flags=0
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})
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 +
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-- step the world and then update the position and rotation of sprites
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local function onEnterFrame()
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world:step(1/60, 8, 3)
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end
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stage:addEventListener(Event.ENTER_FRAME, onEnterFrame)</source>
 
{|-
 
{|-
 
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| style="width: 50%;"|

Revision as of 11:44, 23 August 2018

Supported platforms:
Available since: Gideros 2015.06.30

Description

Defines particle system in box2d world using Liquid fun

Examples

Simple particle system example

-- create world
local world = b2.World.new(0, 9.8)

local ps1= world:createParticleSystem({ radius=5})
ps1:setTexture(Texture.new("Bubble.png"))
stage:addChild(ps1)

ps1:createParticleGroup({shape=shape2, 
position={x=500,y=250},
color = 0xFF0000,
alpha=1,
flags=0
})

ps1:createParticleGroup({shape=shape1, 
position={x=400,y=50},
color = 0x0000FF,
alpha=1,
flags=0
})


-- step the world and then update the position and rotation of sprites
local function onEnterFrame()
	world:step(1/60, 8, 3)
end

stage:addEventListener(Event.ENTER_FRAME, onEnterFrame)

Methods

b2.ParticleSystem:containsParticle -
b2.ParticleSystem:createParticle - create new particle
b2.ParticleSystem:createParticleGroup - create group of particles
b2.ParticleSystem:destroyParticle - destroy particle by id
b2.ParticleSystem:destroyParticles -
b2.ParticleSystem:getParticleCount -
b2.ParticleSystem:getParticleGroupList -
b2.ParticleSystem:setTexture - set texture to particles

Events

Constants

b2.ParticleSystem.FLAG_COLOR_MIXING
b2.ParticleSystem.FLAG_ELASTIC
b2.ParticleSystem.FLAG_POWDER
b2.ParticleSystem.FLAG_SPRING
b2.ParticleSystem.FLAG_TENSILE
b2.ParticleSystem.FLAG_VISCOUS
b2.ParticleSystem.FLAG_WALL
b2.ParticleSystem.FLAG_WATER
b2.ParticleSystem.FLAG_ZOMBIE